Make --noopt behave like an in-place precompilation.

runtime/include/dart_api.h

 /*
  * Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
  * for details. All rights reserved. Use of this source code is governed by a
  * BSD-style license that can be found in the LICENSE file.
  */
 
 #ifndef INCLUDE_DART_API_H_
 #define INCLUDE_DART_API_H_
 
 /** \mainpage Dart Embedding API Reference
@@ skipping 2858 matching lines @@
  * ==============
  */
 
 
 typedef struct {
   const char* library_uri;
   const char* class_name;
   const char* function_name;
 } Dart_QualifiedFunctionName;
 
 

[srdjan, 2015/09/29 23:27:47]

Please add a comment why 'reset_fields' is necessary.

[rmacnak, 2015/09/30 00:10:29]

Done.

 DART_EXPORT Dart_Handle Dart_Precompile(
-    Dart_QualifiedFunctionName entry_points[]);
+    Dart_QualifiedFunctionName entry_points[],
+    bool reset_fields);
 
 
 DART_EXPORT Dart_Handle Dart_CreatePrecompiledSnapshot(
     uint8_t** vm_isolate_snapshot_buffer,
     intptr_t* vm_isolate_snapshot_size,
     uint8_t** isolate_snapshot_buffer,
     intptr_t* isolate_snapshot_size,
     uint8_t** instructions_snapshot_buffer,
     intptr_t* instructions_snapshot_size);
 
 #endif  /* INCLUDE_DART_API_H_ */  /* NOLINT */